Motion#7-9 Free Fall

Free fall is any motion of a body where gravity is the only force acting upon it.

False. In free fall, all objects accelerate at the same rate regardless of their mass.

False. Free fall assumes that only gravity acts on the object, neglecting air resistance.

Approximately 9.8 m/s².

After 4 seconds, the object will be falling at approximately 39.2 m/s (or 88 mph).

The velocity increases as the object falls.

Velocity (v) = g * t, where g is the acceleration due to gravity (9.8 m/s²) and t is the time in seconds.

Terminal velocity is the constant speed an object reaches when the force of air resistance equals the force of gravity.

The mass and shape of the object, as well as the density of the fluid (air) it is moving through.

Free fall is motion under the influence of gravity alone, while projectile motion involves an initial velocity and follows a curved path due to gravity.